Xiaomi Technology

(活水)操作系统测试工程师

Xiaomi Technology  •  Onsite  •  3 hours ago
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Job Description

(活水)操作系统测试工程师
南京
社招
全职
职位 ID:A167369A
职位描述
1、负责窗口、渲染、显示框架的黑屏、花屏、闪屏问题深度分析与复盘,攻坚显示类疑难异常,保障整机显示体验稳定。
2、以蓝军竞品对标思路,搭建显示异常专项分析模型;排查系统服务锁竞争、内存、IO、调度等核心资源问题,定位产品与竞品本质差异,沉淀可复用的分析方法论与工具链,支撑常态化体验优化。
3、搭建三层内存 Benchmark 评测体系
搭建覆盖应用进程、系统服务、设备老化的三层内存评测体系,聚焦杀后台、卡顿、冷启异常、掉帧等用户长体验问题;对标竞品 kswapd、LMK 内存管理机制,量化性能差异,推动内存体验优化落地。
4、构建 SOC Benchmark,支撑芯片硅前、硅后选型评估
基于核心用户场景,从 CPU、GPU、DDR、NPU、ISP、功耗多维度搭建可复跑、可横评、可量化的 SOC 评测体系;在项目早期完成性能评估与风险预判,输出选型建议,支撑芯片与平台决策。
5、搭建端侧 AI 性能与体验 Benchmark 体系
面向 LLM、VLM、ASR、TTS、端侧 Agent 搭建 AI 评测体系,覆盖响应时延、吞吐、能耗、内存、热稳定性等核心指标,兼顾AI任务与前台体验的耦合影响,为模型选型、量化方案、Runtime适配及资源调度优化提供数据支撑。
6、探索 AI 与系统协同差异化能力
围绕智能调度、智能内存、智能续航等方向,探索AI与系统服务深度协同能力;通过竞品对比挖掘差异化机会点,落地创新功能,构筑产品长期技术壁垒。
职位要求
1、计算机、电子、通信、自动化等相关专业本科及以上学历
2、深入理解 Android 系统架构,熟悉 Framework(WMS / SurfaceFlinger / Choreographer 等)、渲染与显示链路,具备黑花闪类问题的独立分析定位能力。
3、熟悉 Linux 内存管理机制(kswapd、LMK / LMKD、PSI、ZRAM 等),能够独立完成内存行为分析与竞品对标。
4、熟悉 SoC 体系结构,了解 CPU / GPU / DDR / NPU / ISP 的工作机制及性能/功耗评估方法,具备 benchmark 设计与横向评测经验。
5、熟练使用 systrace / perfetto / simpleperf / ftrace 等性能分析工具,具备脚本化与自动化能力(Python / Shell 等)。
投递
Xiaomi Technology

About Xiaomi Technology

Xiaomi Corporation was founded in April 2010 and listed on the Main Board of the Hong Kong Stock Exchange on July 9, 2018 (1810.HK). Xiaomi is a consumer electronics and smart manufacturing company with smartphones and smart hardware connected by an IoT platform at its core.

Embracing our vision of “Make friends with users and be the coolest company in the users’ hearts”, Xiaomi continuously pursues innovations, high-quality user experience and operational efficiency. The company relentlessly builds amazing products with honest prices to let everyone in the world enjoy a better life through innovative technology.

Xiaomi is one of the world's leading smartphone companies. The company has also established the world’s leading consumer AIoT (AI+IoT) platform,reached 558 million smart devices connected to its platform (excluding smartphones,laptops and tablets) as of September 30 2022. Xiaomi products are present in more than 100 countries and regions around the world. In August 2022, Xiaomi was included in the Fortune Global 500 list for the fourth year in a row, ranking 266th. The company is the fastest-rising Chinese technology conglomerate during the four-year period.

Xiaomi is a constituent of the Hang Seng Index, Hang Seng China Enterprises Index, Hang Seng TECH Index and Hang Seng China 50 Index.

Industry
IT & Software
Company Size
10,000+ employees
Headquarters
Beijing, CN
Year Founded
2010
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